26
T2GY INSTALLER’S GUIDE
Wiring Schematics
208-230/60/1 ECM
240V L1
HP
240V L2
Premier 2
Microprocessor
Logic Control
(DC Voltage)
P1
Fused L2
C
Unit Power
208-230/60/1
G
Ext Pump
1/2 hp Total
208-230/60/1
NO
CR2
COM
NO
NC
CR4
COM
F1-10A 240V
Fused L2
NO
CR1
COM
Blue(17)
Load
Pump
CC
RV
1
2
3
4
5
6
7
8
1
2
3
P4
Black
Black
Orange
Orange
1
2
3
C
P2
Down
C
1
2
3
4
5
6
7
Shut
SL1 In
Not
SL1 Out
Used
Status LED PCB
SW4
R
R
R
R
R
G
Y
R
1
2
3
Pulse L / Constant L
(See Note 6)
Not Used
FAH / Hydronic
Loop / Well
Test / Norm
Outputs / Norm
Inputs / Norm
Two Speed / Single
NO
NC
CR3
COM
F1-10A 240V
Compressor
NOTE 5
POPC / Spring
No RPM / RPM
Over-Ride Time
Over-Ride Time
Brown
Yellow
Tan
Tan
CC-GND
240V L2
G
W
O
R
C
Y1
Y2
LO
C
R
S
On
SW1
1
2
3
4
5
6
7
8
9
10
11
12
On
SW3
On
SW2
1
2
3
4
5
6
7
8
1
2
3
4
5
Pump
Pump
G
T
Yellow
WCL
CO
NOTE 1
Violet
Yellow
Black
Blue
Not Used
Brown
Gray
Hydronic
Thermostat
(Note 7)
Damper
HW
R
PO
PC
Com
1
2
P10
3
4
5
6
White
Red
Tan
Pink
Orange
Blue
Not Used
Hydronic Cooling Slave Signal - 24VAC Input
DV
Not Used
CCHI
Brown
FAC / Hydronic
Over-ride time SW3-4 SW3-5
5 minutes
15 minutes
30 minutes
60 minutes
On
Off
On
Off
On
On
Off
Off
Over-Ride Selection
Violet
P5
3
4
9
11
2
10
8
1
12
5
14
13
6
7
P6
6
5
4
8
7
12
1
2
9
10
3
13
14
16
11
15
Blk(20)
Acc Com
Acc NC
Acc NO
P3
SV
Blk(23)
White(22)
NOTE 2
ECM
Fan Motor
Grn
15
10
16
3
8
On/Off
PWM
RPM
C2
RPM grnd
P12
P11
2
3
4
5
1
Red
Black
Blue
LP
Blue
Blue
Cap
Tan(16)
Black(1)
CC
Violet(2)
Blue
Blue
Field Selection Dips - #1 On, #6 On, #7 On
Drain pan overflow lockout
WCL thermister (loop<15°F, well<30°F) Lockout
High pressure lockout
Low pressure lockout
ECM2 RPM < 100 rpm lockout
Microprocessor malfunction
Hot-water disable
Drain
Water Flow
High Press
Low Press
Air Flow
Status
Hydronic
Hi Limit
Hydronic Off
LED
Normal Display Mode
#1 Off, #6 On, #7 On
Drain pan overflow
WCL thermister (loop<15°F, well<30°F)
High pressure
Low pressure
ECM2 RPM < 100 rpm
Not used
Current Fault Status
#6 Off, #7 On
Y1
Y2
O
G
W
SL1
HW
HW off
Inputs
#6 On, #7 Off
Compressor
Not used
RV
FAN
HW pump
Loop pump
DV
Outputs
#6 Off, #7 Off
Blower low
Blower med
Blower hi
Aux heat #1
Aux heat #2
Aux heat #3
Aux heat #4
Outputs2
Diagnostic Modes
HW off
HW off
HW off
Not used
Not used
Transformer
24V
PS2
D
C
A
2
1
PB1
1
2
L2
T2
CC
T1
L1
PS1
C
A
NOTE 3
D
Orange
Brown
Yellow(7)
Yellow(21)
Gre/Yel(12)
Yellow
Blk/Wh
Blk/Wh(11)
Gray(9)
Yellow(8)
Yel(19)
Orange(14)
Brown(15)
Blk(24)
Gry/Wh(10)
HWL
G
Blue(13)
Green(18)
Blue
240V
Red
208V
Black
RCP
CS
NOTE 9
NOTE 9
Summary of Contents for T2GY
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